OAKLAND -- Astros rookie outfielder George Springer was out of the lineup for a second consecutive game Tuesday with soreness in his right knee/quadriceps area.
Springer, who hit his 20th homer Saturday and didn't play in Sunday's series finale against the White Sox, did some baseball drills prior to Tuesday's series opener at O.co Coliseum to test the leg and still had enough discomfort that didn't allow him to play.
"I went out and did some stuff and just got some discomfort and we'll take it from there," Springer said.
When asked if it was his knee or quad that was bothering him more, Springer said it was "overall discomfort." He wasn't sure when he would be able return to action, but as of now the situation doesn't appear to warrant a stint on the disabled list.
"I don't have a clue," he said. "I just got to get through it and see what happens."
Astros manager Bo Porter waited until Springer finished working out with the trainers before filling out his lineup, which again had Enrique Hernandez in center field.
"We wanted to allow him to get treatment and the training staff brought him out and went through some drills," Porter said, "and we went through some running and feel if he's not able to go full speed without having discomfort, we don't want to take any chances of it getting worse or him blowing his quad or doing something where we're dealing with an injury that will take much longer to heal than where we're at right now."
Porter said the DL currently isn't an option.
"As time goes on, the information we get each and every day will allow us to make that decision as we move forward," he said. "When you look at the 15-day DL, you have to ask yourself, 'Is he not going to play within the next 15 days?' And we're not at that point right now."